Exclamor is the 1st person singular, present tense, passive voice, indicative mood of the verb exclamo, exclamare: which means to shout out or exclaim. Synopsis, anyone? So literally, we translate exclamor as "I am being exclaimed", or in today's speak: a SHOUT OUT. So multas gratias to Vicky Alvear Shecter for my very first exclamor HERE.